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Seafloor spreading, theory that oceanic crust forms along submarine mountain zones and spreads out laterally away from them. This idea played a pivotal role in the development of the theory of plate tectonics, which revolutionized geologic thought during the last quarter of the 20th century..
- Rifting
Other articles where rifting is discussed: plate tectonics:...
- Rifting
The mid-ocean ridge is where the seafloor spreading occurs, in which tectonic plates —large slabs of Earth’s lithosphere —split apart from each other. Seafloor spreading was proposed by an American geophysicist, Harry H. Hess in 1960.
11 Απρ 2024 · These patterns of magnetic “stripes” parallel to the oceanic ridge system and faithfully recording the changes in the planet’s magnetic polarity were perhaps the most compelling line of evidence yet in support of seafloor spreading, and thus plate tectonics.
Plates of lithosphere move because of convection currents in the mantle. One type of motion is produced by seafloor spreading. Plate boundaries can be located by outlining earthquake epicenters. Plates interact at three types of plate boundaries: divergent, convergent and transform.
1 Δεκ 2021 · The theory of plate tectonics is widely accepted by scientists and provides a robust framework with which to describe and predict the behavior of Earth’s rigid outer shell – the lithosphere – in space and time.
29 Νοε 2023 · Seafloor spreading is a geologic process in which tectonic plates —large slabs of Earth's lithosphere —split apart from each other. Seafloor spreading and other tectonic activity processes are the result of mantle convection. Mantle convection is the slow, churning motion of Earth’s mantle.
1 Ιαν 2014 · Seafloor spreading was a critical step in the contentious scientific revolution from the previous static Earth paradigm to the now universally accepted plate tectonic paradigm. Today it refers to the processes creating new oceanic lithosphere where plates move apart.
